Facturing



c. In. MILLEx.'

GREASE GUN. APPLICATION FILED DEC. 22, |915.

Rissued Mar. A16, 1920. 14: 819 u y filler.

i 4'UNITED STATES PATENT OFFICE;

CHARLES R. MILLER, F COLLINSVILLE, TEXAS, ASSIGNOR T0 MAYO-SIHNNER MANU- v FACTURPINGCO., 0F CHICAGO, ILLINOIS, A COBPORATIN OF ILLINOIS.

GREASE-GUN. v

I Specification of Reissued Letters Patent. feissued Mal'. 16, 1920,

Original No. 1,285,776,.dated November 26, 1918, Serial No. 2 5L,6 81,iled August'', 1918i Application for reissue filed December 22, 191e. SerialfNo. 346,789.

To all wwm t may concern;

Be it known that I, CHARLas R. MILLEn, a citizen of the United States'o' America, residing at Collinsville, in the county of Grayson and State of Texas, have invented certain new and useful Improvements in Grease-Guns, of which the following is a4 full, clear, concise,l and exact description, reference being had to the accompanying drawings, .forming a part of this specilication. v ,y

My invention relates to devices for handling grease for various kinds of machinery and more particularly to grease guns. Generally stated,'my invention is concerned With the provision of a simple devicefwhich can be easily filled With grease and b v means of which the grease lcan be readily applied wherever requ1red. `One object of my invention is to provide a grease gun so constructed and arranged that grease may be taken into the grease containing tube of the grease gun easily and quickly without getting any of the grease on the hands.

Other objects and advantages will be fully explained in the 'following description and the invention `Will be more particularly pointed out-in the claims.

Reference is had to the accompany drawings which form a part of this application. v, Figure l is a side elevation of the grease gun,

y Fig'. 2 is a side elevation, this view showing the gun turned one quarter around from the position shown inA Fig. 1.

Fig. 3 is a broken sectional view, showing details of construction and showing the parts enlarged.

Fig. 4 illustrates the position of the filler in the act of taking in a charge of grease, parts of the operating mechanism being omitted.

Fig. 5 is an end view ofthe telescopic.

Similar characters of reference are used to indicate the same parts throughout theY several views.

The gun includes a barrel or outer sleeve 1 which is lclosedy at the intake' end by a cap 2-Which is hingedly connected thereto, `the hinge member including a shanlr 3 and jaw members 4 secured to the outside .of the', barrel and a pivot bel/t. A spriuglolanp.. 1s provided for holding the cap'2 open dun' ing a iilling' operation. When the "cap is 1 pushed open to the position shown by dotted outline in Fig. l the shank 3 will be caught by the spring clamping members 5.

That end of the barrel or sleeve 1 opposite the cap 2, as shown in the accompanying drawings,- is closed by a plug 6 which serves as a guide for` the plunger rod 7 and for -other purposes hereinafter explained. A

, threads for engaging the cap for locking the cap closed and for holding 'the inner and outer sleeves in proper position with re spect to each other. The cap 2 is provided with, a packing gasket 11 against -Which the filler tube or inner sleeve presses. The ller or inner sleeve is also provided with a perforated plug 12 by which the said filler or inner sleeve 8 may he actuated.

The plunger 9 operates within the tube 8 for discharging grease as hereinafter explaine'd. The plug 12 has aV slot 13 which is y enlarged in the central part forthe operation of the plunger rod 7. The slot 13 is for the passage of the lugs 10 when the plunger 9 is to be released from the tube 8. When the lugs 10 are at right angles to the slot 13, the tube 8 can be moved by the plunger rod 7 and by the plunger 9. The plug 12 has downwardly projecting lugs 14 rigid therewith. For filling the tube 8 with grease, the .rod 7 Will be'turned and f the lugslO will engage the lugs 14 and thus unscrew the tube 8 from the ca 2., The cap 2 can then be swung to the ottedloutline position-oi Fign 1 and clamped in this position.: The rod 7 by means of theflugs 10 .is used .to push .the tube 8 to theposition shown 1n Fig. l for filling purpose. The

tube 8 is provided with an opening 15 to permit escape of air during a llin opera.-

tion. When the tube 8 goes back mto the barrel 11 the perforation 15 will be yclosed by the wall of the barrel 1. Whefijthe tubo 8 has been filled, it is drawn bapkwithin the barrel 1 4by means of the plunger 9. v'Iluisdfh'e iille'r tube ,8 is actuated by plunger rod i- Wi the plunger and the inge EG, and the 'mbe 8 is reieeeed from ehe 'Cep 2 by ineens of ehe plunger rod 7 and ehe logs i and "die ige EAL on'iie ping i2,

l For discharging the se, the pinnger il' can be released from lle mbe by turning the plunger rod 7 nneil che lugs i0 will pees -hrough the slo. 13 and iillien pushing the rod i' inwardly. The rod 2 een men be actuated memiemy or by reicher meci'ienisin. Noelies eue he o ehe rod 7. je. bundle l is pir/*oreilly mounted. on e bracket i9 whioh is rigii the barrei l .and giro-vided I th e swinging grieving] dog 3.8 which is edep-ed to engege lie. notehes 16, the noe-ches lo eonsiiinting ratchet teeth, or e rack. rifhe grease is forced out of a discharge spent or nozzle 20.

lfillren the rabe El .is to be filled with grease, it pushed one oi: ihe barrel "i, es :ibove described, and iiien immersed in libe grease for taking in n charge it is then drawn by ineens of the es Iabove* described, sind then ii for 'locking' the oep sind for" looking the plunger 9, screwed into the oep undue-,libe E together cap -Lo the barrel l.-

`When the rube 8' ie drawn buck, :is inst explained, any exeess grease clinging to ifs onfer cylindrical snrfaee is stripped here from the barrel or outer sleeve Moreover sinee the barrel or outer sleeve -l lies around their porion of the filler tube or inner sieeve 1 which is immersed in the grease during the iilliig operation. it will be seen that)y offer the'lllling operation hes been Aeoeomplished and the parte resored to normal posieion, there wiii be no chance for the oser to get grease on his hands in manipulating elle grease gun. s

lfyzirious changes in the sizes, proportions and consirnotion of 'rire several 'paris may be mede withouf departing from my invention. Y

l. A grease gun comprising e berrei, e telescopio filling and, dispensing member mounted in seid borrel, e een hingedly oonneered o seid barrel, and plunger deteohably oonneoed o said filiing; member for operating the seine and provided with ineensfor eteeoing and dereching said fille ing' member to and from. said Cap.

rreese gen Comprising e. barrel, e Lele- .fseopie filling and dispensiig n'uexnber monnied in seid bnrrei provided with n perfore'ied plug and lugs depending from the ping, u -np liinledly connected o'said barrel, end u plunger deechobly Conneeted to seid filling mein er for actuating 'the vseine and provided with lugs for engaging ihe lugs of seid ning; for attaching und denching md iilling member to and from said. cap.

irl. A grease eomprising e barrel, efilling and dispensing member mounted in ffor moving sleeve, snid'grease container were oonneted to gid with said and a. pera. perorated plug L, a, barrel, e oep liingedly-oonneeted to said barrel and xnenns'on said barrel for holding seidap in open position, Ibermounted in seid borrel, und n plun r deeaehwbljv connected to seid Afilling mem er for moving. the seme in and out of seid Y barrel and provided With .means for attnche. ereese gun comprising -member provided 70 e telescopic filling memil and denfliing said filling member lto und, from seid rep.

5. i grease gun provided with a oup hingedly conneeted'there-to and provide with n discharge nozzle, etelescoplo filling member mounted in seid barrel, e plunger l deeeehebly connected to seid filling member che seme in andout of said berrei and prorided with means for detaolr ing und nttziching Said filling member from und to said crap, and ineens plunger fo discharge grease through said nozzle when deter-hed from said 'filling member.

o. grease gun comprising e grease eonreiner, plunger movable therein, n sleeve 1,00'

disposed around Seid grease container, e oep hiiiggedly mounted on 'said sleeve, 'zi'nozzle carried bjv seid Cap, internal screw threads provided in seid cap, and external screw @breads on seid container,

grease eonzeiner being rotatable in said .sleeve io eiiert the engagement and disenf gregrernenb of said threads, and being` reciproenble relatively to seidY sleeve so that the threaded be imoved ont of the corresponding end of the container may 'for he purpose of liing said container, said een serving to prevent relative reciprooatory movemenry bebween said greaseoontainer and sleeve when said container gegement-Wi'h said oep. r Y

i". A grease gun comprising a cylindrical grease container and a. plunger reciprocable has threaded eniherein, e eyiindrieel sleeve around said grease container, a oop hingedlyy mounted upon one end of said sleeve, said cap having its pivor point ouiside of the circle defined.

the outer Cylindrical surface of seid.J

that said cap may swing sleeve, to the end eleer of Tthe end' of the sleeve to permit the gre-sev container to be forced out of the and said 'cap being provided with ooperuting screw threede, said grease container being rota- A end of the sleeve for actuating said 95 Y Y arranged to oo- 1013 opere-.ie 'mili seid first-mentioned threads, said leere that the container may be fced a substantiai distance out of tile sleve for the purpose of filling the container, said cap serv ing to prevent-*relative reciprocatory 1nove` litting ment between said grease container and said' sleeve when said container has threaded engagement with said y 8. A grease gun comprising a sleeve, a telescopic filling and dispensing member mounted in said sleeve, a plunger-fin said filling and dispensing member for tile pur',-

pose of discharging grease from one end` end dispensing member` being reciprocable relatively to sind sleeve thereof, said filling so that the discharge end of said llingi and dispensing member may be moved a substantial distance out of the corresponding end ofthe sleeve for the purpose' of Filling said Billing and dispensing member with grease, a cap tted over that end ofsaid sleeve which is adjacent to the discharge end of said fill v lng-.and dispensingJ member, togethe'1-vvith means for detacliably securing the discharge "end of said lilling-and'dispelsing member to said cap 9. A greasegun comprising a. tube-that is adapted to be filled with grease by iininersing 'its discharge end in a 'supply of grease. v

a sleeve which normally sheaths that portion 'of the tube which is immersed in the greaseduringthe filling operation, said sleeve -being reciprocable relatively to said tube toY expose a substantialiportion of the tube to be immersed in the grease during the filling operation, and means for holding said sleeve in position to sheathsaid portion of'said tulo@ comprising a cap carried by seid sleeve, said cap arranged 'to be detachaliliy secured to said tube.' .f

.101A grease gun comprising s grease container that is adapted to bef filled with grease by forcing its discharge end into' e supply of grease, a nozzied cap for the discharge end of said container, and a, sleeve disposed around saidcontainer and snugly the same, said sleeve being rotatable and reciprocable with respect tosaid container, ineens pivotally securingsaid cap to said sleeve and means for detachaiiiy securing said carp tov the discharge end of said grease container,'said sleeve arranged to be moved-back from the discharge end of said 'container when the container is .to loe forced finto e supply of grease as aforesaid and being movable toward the discharge end of said containerto strip excess grease from its puter surface, after said containerhas been -filled with grease.

11. A vgrease gun comprising an outer sleeve a, telescopic iilling and dispensing and adapted to be rotated vand reciprocated therein, e plunger in said filling and dispensing member, a; nozzled cap hingedly en f member mounted within said outer sleeve whereby said member may have threaded enl gagement Witlirsaid eap to retain said cap yin pos'rtion and to prevent relative axiai movement between said sleeve` and said tilt ing and dispensing member. I

12. A greasegnn comprising a'grease container, avplunger movable therein, a sleeve disposed around said grease'container, a nozzled cap inngedly mounted upon the sleeve and arranged to it over one end of the latter., internal screw threads in seid cap, ex-

ternal screw threads on said-grease container whereby said grease container may be threaded into' said cap to hold the cap in position and to prevent relative axial move ment between the sleeve and the grease con tainer, together with a packing gasket dis posed in said cap and adaptedto be cornpressed between the cap and grease container when .the latter is threaded into the cap.

in Witness'whereof, herennte subscribe my nenTethis 16th dey of liecenuber,n 1919.

oneness minne Witnesses:

F. R. nn CORDOVA,

Nemen.. 

